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Table 1 Demographics and baseline spirometric data for young smokers with mild asthma (MA subgroup) and healthy young smokers (HS subgroup)

From: Immediate effects of cigar smoking on respiratory mechanics and exhaled biomarkers; differences between young smokers with mild asthma and otherwise healthy young smokers

  MA subgroup HS subgroup  
(N = 22) (N = 25)
  Mean (SD) Mean (SD) P
Sex, N (%)
 Males 12 (54.5) 17 (68.0) 0.344*
 Females 10 (45.5) 8 (32.0)  
Age (years) 23.6 (3.9) 23.2 (4.5) 0.525**
BMI (kg/cm2) 23.9 (2.9) 23 (3.4) 0.404**
Pack-years 3.6 (2.6) 3.6 (2.9) 0.747**
FVC (% pred.) 97.75 (10.6) 105.5 (10.8) 0.013**
FEV1 (% pred.) 90.58 (9.4) 109.5 (9.2) <0.001**
FEV1/FVC (% pred.) 79 (5.6) 88.8 (5.3) <0.001**
PEF (% pred.) 91.49 (12.3) 99 (13.1) 0.062**
FEF25%-75% (% pred.) 71.44 (13.9) 112.7 (22.3) <0.001**
FEF25% (% pred.) 85.8 (16.6) 111 (16.6) <0.001**
FEF50% (% pred.) 76.46 (14.6) 114 (19.9) <0.001**
FEF75% (% pred.) 68.63 (20.0) 118 (39.6) <0.001**
  1. *Pearson’s chi-square test; **Student’s t-test